/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package trader.web;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.RequestDispatcher;
import trader.*;

/**
 *
 * @author Administrator
 */
public class CustomerController extends HttpServlet {
   
    /** 
    * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
    * @param request servlet request
    * @param response servlet response
    */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
      BrokerDelegate delegate = BrokerDelegate.getInstance();
      
      String id = request.getParameter("customerIdentity");
      String name = request.getParameter("customerName");
      String address = request.getParameter("customerAddress");
      String submit = request.getParameter("submit");
      int version = 0;
      
        if (request.getParameter("version") != null){
          version = Integer.parseInt(request.getParameter("version"));
        }
      
        if(submit != null) {

            try {

                if(submit.equals("Get Customer")) {
                    Customer cust = delegate.getCustomer(id);
                    request.setAttribute("customer", cust);
                } else if(submit.equals("Update Customer")) {
                    delegate.updateCustomer(id, name, address, version);
                    Customer cust = delegate.getCustomer(id);
                    request.setAttribute("customer", cust);            
                } else if(submit.equals("Add Customer")) {
                    delegate.addCustomer(id, name, address);
                    Customer cust = delegate.getCustomer(id);
                    request.setAttribute("customer", cust);              
                } else if(submit.equals("Delete Customer")) {
                    delegate.deleteCustomer(id);
                    request.removeAttribute("customer");
                } 
            } catch (BrokerException be) {
                request.setAttribute("message", be.getMessage());
            } 

            RequestDispatcher dispatcher = request.getRequestDispatcher("CustomerDetails");
            dispatcher.forward(request, response);
            
        } else {
            
            
            try {

               Customer[] customers = delegate.getAllCustomers();
               request.setAttribute("customers", customers);
                
            } catch (BrokerException be) {
                request.setAttribute("message", be.getMessage());
            } 

            RequestDispatcher dispatcher = request.getRequestDispatcher("AllCustomers.jsp");
            dispatcher.forward(request, response);
            
        }
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
    * Handles the HTTP <code>GET</code> method.
    * @param request servlet request
    * @param response servlet response
    */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
    * Handles the HTTP <code>POST</code> method.
    * @param request servlet request
    * @param response servlet response
    */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
    * Returns a short description of the servlet.
    */
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
